# Abundant number

In number theory, an abundant number or excessive number is a number for which the sum of its proper divisors is greater than the number. The integer 12 is the first abundant number. Its proper divisors are 1, 2, 3, 4 and 6 for a total of 16. The amount by which the sum exceeds the number is the abundance. The number 12 has an abundance of 4, for example. (Wikipedia).

Awesome Number Pattern 1

Exploring an amazing pattern that forms when we multiply numbers built only with the one digit

From playlist Number Patterns

Abundant, Deficient, and Perfect Numbers ← number theory ← axioms

Integers vary wildly in how "divisible" they are. One way to measure divisibility is to add all the divisors. This leads to 3 categories of whole numbers: abundant, deficient, and perfect numbers. We show there are an infinite number of abundant and deficient numbers, and then talk abou

From playlist Number Theory

Why Are There Infinitely Many Prime Numbers?

Here's why there are infinitely many prime numbers!

From playlist Summer of Math Exposition Youtube Videos

The Greatest Common Factor

This video explains how to determine the GCF of integers and expressions. http://mathispower4u.wordpress.com/

From playlist Integers

Chapter 1 - Prime and Composite Numbers - IB Math Studies (Math SL)

Hello and welcome to What The Math. This is a Chapter 1 video about prime and composite numbers with the focus on the awesomeness and importance of prime numbers in real life. This is from Harris Publication version of IB math book by Haese.

From playlist IB Math Studies Chapter 1

Example: Determining the Greatest Common Factor

This video provides two examples of determining the greatest common factor by using prime factorization. Complete video list at http://www.mathispower4u.com

From playlist Factors, Prime Factors, and Least Common Factors

Introduction to Number Theory, Part 6: The infinitude of primes & their factorization

In this video we recall the definition of prime numbers, prove there are infinitely many, and that every natural number larger than 1, has a unique decomposition as a product of primes. (Up to re-ordering)

From playlist Introduction to Number Theory

Prove that there is a prime number between n and n!

A simple number theory proof problem regarding prime number distribution: Prove that there is a prime number between n and n! Please Like, Share and Subscribe!

From playlist Elementary Number Theory

19861: A Superabundant Odyssey - #MegaFavNumbers

A tale of superabundant numbers, the Riemann Hypothesis, and a proof by assumption. This video is part of the #MegaFavNumbers collaboration: https://www.youtube.com/playlist?list=PLar4u0v66vIodqt3KSZPsYyuULD5meoAo Special thanks to Dr. Jonathan Clark and Dr. Ben Braun for their roles in

From playlist MegaFavNumbers

Mass Spectrometry Exam Questions | A Level & IB Chemistry | SwH Learning

For A level tuition, visit www.swhlearning.co.uk/tuition Hazel answers a range of past paper questions about mass spectrometry, and talks you through how to analyse a mass spectrometer read out. These videos are designed to help with your A level and SL IB chemistry revision. This video

From playlist A Level & IB Chemistry //

Abundant, Deficient and Perfect Numbers

In this video, we sort numbers into abundant, deficient and perfect numbers and discuss some ideas around the patterns behind these numbers.

From playlist Math 6

How To Find The Percent Abundance of Each Isotope - Chemistry

This chemistry video tutorial explains how to find the percent abundance of an isotope. It uses bromine-79 and bromine-81 as an example. My Website: https://www.video-tutor.net Patreon: https://www.patreon.com/MathScienceTutor Amazon Store: https://www.amazon.com/shop/theorganicchemis

From playlist New AP & General Chemistry Video Playlist

HEDS Seminar Series | Joyce Guzik | “Solar Models and Opacities”

“Solar Models and Opacities” HEDS Seminar Series – Joyce Guzik – August 27th, 2020 💻 LLNL News: https://www.llnl.gov/news 📲 Instagram: https://www.instagram.com/livermore_lab 🤳 Facebook: https://www.facebook.com/livermore.lab 🐤 Twitter: https://twitter.com/Livermore_Lab 🔔 Subscribe:

From playlist High Energy Density Science Seminar Series

A Level Chemistry Revision "The Mass Spectrometer"

In this video, we start by recapping what is meant by an isotope. We then look at how a mass spectrometer is used to determine both the mass and relative abundance of isotopes. We finish by looking at how to interpret a mass spectrum and I give you two mass spectra to interpret yourself.

From playlist A Level Chemistry Calculations Involving the Mole

Teach Astronomy - Cosmic Element Abundance

http://www.teachastronomy.com/ The cosmic abundance of different elements in the periodic table is a fundamental property of the universe that astronomers have successfully explained. The most abundant elements, hydrogen and helium, three quarters hydrogen and one quarter helium by mass,

From playlist 16. Stars 3

Abundant Numbers? #Shorts #YouTubeShorts | Don't Memorise

What’s more about Abundant Numbers? What’s their other name? Check the video out! Don’t Memorise brings learning to life through its captivating educational videos. To Know More, visit https://infinitylearn.com/ New videos every week. To stay updated, subscribe to our YouTube channel: h

From playlist Shorts

Astronomy - Ch. 8: Origin of the Solar System (6 of 19) Formation of Elements

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the abundance of elements in our universe. Next video in this series can be seen at: http://youtu.be/khuLar1BFNg

From playlist ASTRONOMY 8 ORIGIN OF THE SOLAR SYSTEM

There are a lot more numbers than I thought there were - MegaFavNumbers

A short video detailing my favorite number larger than 1 million! There are so many numbers out there it was hard to choose from, but I’m glad I could participate in the #MegaFavNumbers series

From playlist MegaFavNumbers

Galaxy-Dark Matter Halo Connection and Evolution Using HSC Photometric... by Navin Chaurasiya

PROGRAM LESS TRAVELLED PATH TO THE DARK UNIVERSE ORGANIZERS: Arka Banerjee (IISER Pune), Subinoy Das (IIA, Bangalore), Koushik Dutta (IISER, Kolkata), Raghavan Rangarajan (Ahmedabad University) and Vikram Rentala (IIT Bombay) DATE & TIME: 13 March 2023 to 24 March 2023 VENUE: Ramanujan

From playlist LESS TRAVELLED PATH TO THE DARK UNIVERSE